A real-world pilot study assessing treatment satisfaction with avanafil in patients with erectile dysfunction

Author:

Tsai Ping-Ju12,Hung Shih-Ya12,Lee Tsung-Hsi12,Jiann Bang-Ping12

Affiliation:

1. Division of Urology , Department of Surgery, , No. 136, Siwei 4th Road, Lingya District, Kaohsiung City 802793 , Taiwan, Republic of China

2. Yuan's General Hospital , Department of Surgery, , No. 136, Siwei 4th Road, Lingya District, Kaohsiung City 802793 , Taiwan, Republic of China

Abstract

Abstract Background Avanafil is a second-generation phosphodiesterase type 5 (PDE5) inhibitor, and offers a rapid onset of action (15 minutes). Its real-world data, including treatment satisfaction, are still lacking. Aim The study sought to investigate the treatment outcomes of avanafil and the factors impacting treatment satisfaction in a real-world setting. Methods Between November 2021 and February 2023, erectile dysfunction (ED) patients prescribed avanafil were consecutively enrolled in this phase 4, open-label, cross-sectional, observational study. At each follow-up visit (4-week intervals), participants completed a questionnaire for assessing the use and treatment-emergent adverse events of avanafil, ED severity, and treatment satisfaction. Outcomes The outcome measures included the Sexual Health Inventory for Men (SHIM), and Erectile Dysfunction Inventory of Treatment Satisfaction. Results Among 234 patients enrolled, 112 (47.9%) patients had follow-up visits and answered the questionnaire. Treatment with avanafil significantly improved the mean SHIM total score from 10.2 ± 5.6 at baseline to 17.5 ± 6.2 (P < .001). Of the patients treated with avanafil, 71.4% (n = 80 of 112) reported a >4-point improvement in the SHIM total score, and 33.1% (n = 37 of 112) reported normal erectile function. The proportion of patients satisfied with avanafil treatment (defined as Erectile Dysfunction Inventory of Treatment Satisfaction index score ≥60) was 87.5%. Several physical factors (younger age, lower waist circumference, and lower level of low-density lipoprotein), and sexual function factors (shorter duration of ED, higher SHIM total score at baseline, PDE5 inhibitor treatment naive, and acquired premature ejaculation) tended to contribute to satisfaction with avanafil treatment. Treatment-emergent adverse events occurred in 41.1% of patients, and all were mild in severity. Clinical Implications This study identifies the factors associated with treatment satisfaction of avanafil, which may ultimately lead to better treatment outcomes. Strengths and Limitations This is the first study to provide real-world evidence of avanafil for ED treatment, and validated questionnaires were used to assess erectile function and treatment satisfaction. However, the limitations of this study include single-center observational study design, small sample size, and short-term follow-up. Conclusion Avanafil is an effective treatment for ED, and satisfaction rate is high in an outpatient setting. The awareness of identified factors related to patient satisfaction may improve treatment outcomes.

Publisher

Oxford University Press (OUP)

Reference39 articles.

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